Rohde & Schwarz FSW13, Руководство пользователя

Страница: 170 / 1150

Measurements
R&S
®
FSW
170 User Manual 1173.9411.02 ─ 19
The value entered for any ADJ or ALT channel is automatically also defined for all sub-
sequent alternate (ALT) channels. Thus, only one value needs to be entered if all adja-
cent channels have the same bandwidth.
Remote command:
[SENSe:
​
]POWer:
​
ACHannel:
​
BANDwidth|BWIDth:
​
ACHannel
​
on page 702
[SENSe:
​
]POWer:
​
ACHannel:
​
BANDwidth|BWIDth:
​
ALTernate<ch>
​
on page 702
Weighting Filters ← Adjacent Channel Definition
Weighting filters allow you to determine the influence of individual channels on the total
measurement result. For each channel you can activate or deactivate the use of the
weighting filter and define an individual weighting factor ("Alpha" value).
Remote command:
Activating/Deactivating:
[SENSe:
​
]POWer:
​
ACHannel:
​
FILTer[:
​
STATe]:
​
ACHannel
​
on page 706
[SENSe:
​
]POWer:
​
ACHannel:
​
FILTer[:
​
STATe]:
​
ALTernate<ch>
​
on page 706
Alpha value:
[SENSe:
​
]POWer:
​
ACHannel:
​
FILTer:
​
ALPHa:
​
ACHannel
​
on page 705
[SENSe:
​
]POWer:
​
ACHannel:
​
FILTer:
​
ALPHa:
​
ALTernate<ch>
​
on page 705
Limit Checking ← Adjacent Channel Definition
During an ACLR measurement, the power values can be checked whether they
exceed user-defined or standard-defined limits. A relative or absolute limit can be
defined, or both, for each individual adjacent channel. Both limit types are considered,
regardless whether the measured levels are absolute or relative values. The check of
both limit values can be activated independently. If any active limit value is exceeded,
the measured value is displayed in red and marked by a preceding asterisk in the
result table.
Note that in addition to activating limit checking for individual channels, limit checking
must also be activated globally for the MSR ACLR measurement (see
"Limit Checking"
on page 168).
Remote command:
CALCulate:
​
LIMit:
​
ACPower[:
​
STATe]
​
on page 711
CALCulate:
​
LIMit:
​
ACPower:
​
ACHannel:
​
ABSolute:
​
STATe
​
on page 708
CALCulate:
​
LIMit:
​
ACPower:
​
ACHannel:
​
ABSolute
​
on page 708
CALCulate:
​
LIMit:
​
ACPower:
​
ACHannel[:
​
RELative]:
​
STATe
​
on page 709
CALCulate:
​
LIMit:
​
ACPower:
​
ACHannel[:
​
RELative]
​
on page 709
CALCulate:
​
LIMit:
​
ACPower:
​
ALTernate<ch>:
​
ABSolute:
​
STATe
​
on page 710
CALCulate:
​
LIMit:
​
ACPower:
​
ALTernate<ch>:
​
ABSolute
​
on page 710
CALCulate:
​
LIMit:
​
ACPower:
​
ALTernate<ch>[:
​
RELative]:
​
STATe
​
on page 711
CALCulate:
​
LIMit:
​
ACPower:
​
ALTernate<ch>[:
​
RELative]
​
on page 710
CALCulate:
​
LIMit:
​
ACPower:
​
ACHannel:
​
RESult?
​
on page 709
Channel Power and Adjacent-Channel Power (ACLR) Measurement